Air duct module and horizontal refrigerator

Abstract

The utility model discloses an air duct module and a horizontal refrigerator, and belongs to the technical field of refrigeration equipment. The shell is provided with a mounting cavity, a first air outlet, a second air outlet and an air return opening, the first air outlet, the second air outlet and the air return opening communicate with the mounting cavity, in the height direction of the shell, the first air outlet is located above the second air outlet, and the second air outlet is located above the air return opening; the drainage piece is mounted in the mounting cavity, so that external gas can enter the mounting cavity through the air return opening, and the gas in the mounting cavity flows out of the mounting cavity from the first air outlet and / or the second air outlet; the air outlet area of the first air outlet is in an arc shape. The first air outlet is located above the second air outlet, and the air outlet area of the first air outlet is in an arc shape, so that cold air blown out of the air duct module can be blown into different heights in the containing cavity, articles in different areas can be directly blown by the cold air as much as possible, and the freezing effect is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of refrigeration equipment, and in particular relates to an air duct module and a horizontal refrigerator. Background Art

[0002] A freezer is a specialized storage device used to store various items that require refrigeration. It keeps food and other items frozen and is available in both home and commercial formats. A freezer's refrigeration system consists of a compressor, condenser, capillary tubes, and evaporator. Through the continuous circulation of refrigerant, heat is drawn from the freezer to the outside, achieving a cooling effect.

[0003] To reduce condensation inside the freezer, air cooling can be used. A fan circulates cool air, ensuring that food and beverages maintain a roughly consistent temperature throughout the freezer. However, in related art, the cooling method of the freezer's air duct module is prone to large temperature differences within the freezer, resulting in poor cooling performance. Utility Model Content

[0004] The present application aims to at least to some extent solve the technical problem of poor refrigeration effect. To this end, the present application provides an air duct module and a horizontal refrigerator.

[0005] In a first aspect, an embodiment of the present application provides an air duct module, comprising:

[0006] A housing having an installation cavity, a first air outlet, a second air outlet, and a return air outlet communicated with the installation cavity, wherein along the height direction of the housing, the first air outlet is located above the second air outlet, and the second air outlet is located above the return air outlet;

[0007] a flow guide member installed in the installation cavity, capable of allowing external air to enter the installation cavity through the return air port, and allowing the air in the installation cavity to flow out of the installation cavity through the first air outlet and / or the second air outlet;

[0008] The air outlet area of the first air outlet is arc-shaped, and the first air outlet is provided with an air outlet grille.

[0009] The first air outlet is located above the second air outlet, and the air outlet area of the first air outlet is arc-shaped, so that the cold air blown out from the air duct module can be blown to different heights in the accommodating cavity, so that the items in different areas can be directly blown by the cold air as much as possible, thereby improving the freezing effect.

[0010] In an optional embodiment of the present application, at least a portion of the first air outlet is arc-shaped.

[0011] In an optional embodiment of the present application, the curvature of the first air outlet is 80 degrees to 100 degrees.

[0012] In an optional embodiment of the present application, the shell has a first surface and a second surface that are arranged at an angle to each other, and the first air outlet is located on the first surface and the second surface respectively.

[0013] In an optional embodiment of the present application, the second air outlet is located on the second surface.

[0014] In an optional embodiment of the present application, the air duct module further includes a flow guide member disposed in the installation cavity, capable of distributing the air volume to the first air outlet and the second air outlet.

[0015] In an optional embodiment of the present application, the shell includes a front shell and a rear shell, the front shell and the rear shell are connected to form the installation cavity, the first air outlet, the second air outlet and the return air outlet are arranged on the front shell, and the rear shell is provided with an air inlet.

[0016] In an optional embodiment of the present application, the guide member is installed on the rear shell and is sealed to the front shell.

[0017] In an optional embodiment of the present application, the guide member and the rear shell are integrally formed.

[0018] In an optional embodiment of the present application, the shell has a mounting groove; the air duct module also includes a fixing member and a cover plate, the fixing member is arranged in the mounting groove and is used to fix the shell and the cabinet of the refrigeration equipment, and the cover plate covers the mounting groove.

[0019] In a second aspect, an embodiment of the present application provides a horizontal freezer, characterized in that it includes a cabinet body and the air duct module provided in the first aspect, and the air duct module is installed in the cabinet body.

[0020] The beneficial effects of the horizontal freezer provided in the second aspect are the same as the beneficial effects of the air duct module provided in the first aspect, and will not be repeated here.

[0021] In an optional embodiment of the present application, the cabinet has a accommodating cavity, the accommodating cavity has a bottom surface and a step surface higher than the bottom surface, and the return air outlet is located on the step surface.

[0022] In an optional embodiment of the present application, the return air outlet is located at 1 / 4 to 1 / 2 of the cabinet along the height direction of the cabinet.

[0023] In an optional embodiment of the present application, along the height direction of the cabinet, the second air outlet is located at 3 / 5 to 4 / 5 of the cabinet, and the first air outlet is located at the top of the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] Figure 1 A structural schematic diagram of the air duct module provided in an embodiment of the present application from a first perspective is shown.

[0026] Figure 2 A structural schematic diagram of the air duct module provided in an embodiment of the present application from a second perspective is shown.

[0027] Figure 3 Shown Figure 2 A partial enlarged view of point D in the middle.

[0028] Figure 4 Shown Figure 1 A partial enlarged view of point C in the middle.

[0029] Figure 5 A schematic diagram of the structure of part of the horizontal refrigerator provided in an embodiment of the present application is shown.

[0030] Figure 6 An exploded view of the air duct module provided in an embodiment of the present application is shown.

[0031] Figure 7 A structural schematic diagram of the rear shell and the air guide member of the air duct module provided in an embodiment of the present application is shown from a first perspective.

[0032] Figure 8 A structural schematic diagram of the rear shell and the air guide member of the air duct module provided in an embodiment of the present application is shown from a second perspective.

[0033] Figure 9 A schematic structural diagram of the air duct module provided in an embodiment of the present application is shown.

[0034] Figure 10 An exploded view of the air duct module provided in an embodiment of the present application is shown from a first perspective.

[0035] Figure 11 An exploded view of the air duct module provided in an embodiment of the present application is shown from a second perspective.

[0036] Figure 12 Shown Figure 10 A partial enlarged view of point F in the middle.

[0037] Figure 13 Shown Figure 11 A partial enlarged view of point G in the middle.

[0038] Figure 14 The structure diagram of the front shell of the air duct module provided in an embodiment of the present application is shown.

[0039] Figure 15 A structural schematic diagram of a horizontal refrigerator provided in an embodiment of the present application from a first perspective is shown.

[0040] Figure 16 A structural schematic diagram of a horizontal refrigerator provided in an embodiment of the present application from a second perspective is shown.

[0041] Figure 17 A cross-sectional view of a horizontal freezer provided in an embodiment of the present application is shown.

[0042] Figure 18 Shown Figure 17 A partial enlarged view of point A in the middle.

[0043] Figure 19 A partial cross-sectional view of a horizontal refrigerator provided in an embodiment of the present application is shown.

[0044] Figure 20 Shown Figure 19 A partial enlarged view of point H in the middle.

[0045] Figure 21 Shown Figure 17 A partial enlarged view of point J in the middle.

[0046] Reference numerals: 10 - horizontal freezer, 100 - air duct module, 112 - first air outlet, 112a - air outlet grille, 112b - mesh, 112c - first left air outlet, 112d - first right air outlet, 113 - second air outlet, 113c - second left air outlet, 113d - second right air outlet, 114 - return air outlet, 114a - first side, 114b - second side, 115 - air inlet,

[0047] 120-housing, 121-front housing, 121a-first housing segment, 121b-second housing segment, 121c-third housing segment, 123-rear housing, 124-installation cavity, 125-fixing cavity, 126a-first surface, 126b-second surface, 126-insulation layer, 126-insulation layer, 127-sealing layer, 128-installation groove, 129a-fixing hole, 129b-clamping hole, 129c-second positioning portion,

[0048] 130- drainage member, 150- fixing member, 160- cover plate, 162- clamping portion, 162a- connecting section, 162b- clamping section, 170- connecting member,

[0049] 140- flow guide, 142- first flow guide portion, 142a- first upper flow guide section, 142b- first lower flow guide section, 142c- first connection point, 145- second flow guide portion, 145a- second upper flow guide section, 145b- second lower flow guide section, 145c- second connection point, 146- third flow guide portion,

[0050] 200-cabinet, 211-accommodation cavity, 213-bottom surface, 214-step surface, 215-electrical cavity, 220-main body, 221-inner tank, 223-outer shell, 230-door body, 240-reinforcement part, 250-first positioning part,

[0051] 310-compressor, 320-evaporator, 330-refrigeration element, X-width direction, Y-thickness direction, Z-height direction. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0053] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0054] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0055] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0056] A freezer is a specialized storage device used to store various items that require refrigeration. It keeps food and other items frozen and is available in both home and commercial formats. A freezer's refrigeration system consists of a compressor, condenser, capillary tubes, and evaporator. Through the continuous circulation of refrigerant, heat is drawn from the freezer to the outside, achieving a cooling effect.

[0057] In order to reduce the problem of condensation inside the freezer, air cooling can be used. The cold air is circulated by a fan to ensure that the food and beverages can maintain a roughly consistent temperature throughout the freezer. However, in the related art, the cold air method of the air duct module of the freezer is prone to large temperature differences inside the freezer, resulting in poor cooling effect. The air duct module and horizontal freezer provided in the embodiment of the present application can improve the above-mentioned problem. The air duct module and horizontal freezer provided in the embodiment of the present application can enable cold air to flow at different heights of the horizontal freezer, covering different areas of the horizontal freezer as much as possible, thereby improving the freezing effect.

[0058] The present application is described below with reference to specific embodiments and with reference to the accompanying drawings:

[0059] See also Figure 1 and Figure 2 The embodiment of the present application provides an air duct module 100. The air duct module 100 provided in the embodiment of the present application is mainly used in refrigeration equipment. The air duct module 100 provided in the embodiment of the present application can enable cold air to flow at different heights of the horizontal freezer 10, and can cover different areas of the horizontal freezer 10 as much as possible, thereby improving the freezing effect.

[0060] The refrigeration device may be a refrigerator or a freezer, and specifically, the freezer may be a horizontal freezer 10 or a vertical freezer. In the embodiments of the present application, for convenience of description, the horizontal freezer 10 is used as an example for explanation, and the same can be applied to other devices.

[0061] The chest freezer 10 is roughly a rectangular parallelepiped. For ease of description, the height direction Z, width direction X, and thickness direction Y are defined separately. When the chest freezer 10 is in use, the vertical direction is the height direction Z, and the projection of the chest freezer 10 in the vertical direction is a rectangle. The direction along which the long side lies is the width direction X, and the direction along which the wide side lies is the thickness direction Y.

[0062] Since the thickness of the air duct module 100 is smaller than its width, and the width of the air duct module 100 is substantially equal to the thickness of the horizontal freezer 10, the air duct module 100 can be installed on a side of the horizontal freezer 10 in the width direction X, so that the air blown out of the freezer can cover the side formed by the length direction and the width direction X as much as possible. This allows the air blown out of the freezer to cover the entire interior of the cabinet 200, thereby improving the uniformity of freezing as much as possible.

[0063] Similarly, for ease of description, six directions are defined: up, down, left, right, front, and back. In the height direction Z, the direction closest to the opening is up, and the direction closest to the bottom surface 213 is down. In the width direction X, the directions are left and right, respectively. The installation location of the duct module 100 is right, and the opposite side is left. In the thickness direction Y, the connection between the door 230 and the main body 220 is back, and the opposite side is front.

[0064] In an embodiment of the present application, the air duct module 100 includes a shell 120 and a guide member 130, the shell 120 has an installation cavity 124, a first air outlet 112 connected to the installation cavity 124, a second air outlet 113 and a return air outlet 114; the guide member 130 is installed in the installation cavity 124, and can allow external gas to enter the installation cavity 124 through the return air outlet 114, and the gas in the installation cavity 124 flows from the first air outlet 112 and / or the second air outlet 113 to the outside of the installation cavity 124.

[0065] The air outlet area of the first air outlet 112 is arc-shaped.

[0066] The air duct module 100 is applied to the refrigeration equipment (horizontal freezer 10) and is installed in the cabinet 200 of the refrigeration equipment (horizontal freezer 10). It can make the air in the refrigeration equipment (horizontal freezer 10) flow, so that the air in the refrigeration equipment (horizontal freezer 10) can be blown toward the frozen items after being cooled by the evaporator 320. That is, it can be considered that the air duct module 100 is mainly used to blow cold air into the refrigeration equipment (horizontal freezer 10), so that the cold air can circulate inside the refrigeration equipment (horizontal freezer 10), and ensure that the temperature in the same chamber of the refrigeration equipment (horizontal freezer 10) is roughly the same as much as possible, thereby reducing the temperature difference in the same chamber.

[0067] The housing 120 is the foundation of the duct module 100, providing a mounting base for the other components of the duct module 100. Structures such as the flow guide 130 can be mounted on the housing 120, forming a cohesive unit for the duct module 100 and facilitating its installation and transportation. Furthermore, the housing 120 protects the flow guide 130 and other components, minimizing damage from external structures.

[0068] The flow guide 130 is mainly used for disturbing the flow so that the air can circulate in the refrigeration device, that is, the air in the refrigeration device can continuously flow to the evaporator 320, and then be blown to the frozen items again after being cooled by the evaporator 320.

[0069] The flow guiding member 130 may be a fan, specifically, a centrifugal fan, an axial flow fan, or a cross flow fan.

[0070] The arc-shaped air outlet area of the first air outlet 112 means that the air outlet area in the height direction Z of the horizontal freezer 10 is arc-shaped. The arc-shaped air outlet area in the height direction Z allows the cold air blown out from the first air outlet 112 to have multiple different directions in the height direction Z, thereby allowing the cold air blown out from the first air outlet 112 to blow to different heights in the horizontal freezer 10, so that the cold air can flow in different heights of the horizontal freezer 10 and cover different areas of the horizontal freezer 10 as much as possible, thereby improving the freezing effect.

[0071] In addition, since the air duct module 100 is applied to the horizontal refrigerator 10 , the outlet area of the first air outlet 112 is arc-shaped in the height direction Z of the horizontal refrigerator 10 , that is, the outlet area of the first air outlet 112 is arc-shaped in the vertical plane.

[0072] Among them, the air outlet area of the first air outlet 112 is arc-shaped. The shape of the first air outlet 112 can be arc-shaped, or air ribs can be set at the first air outlet 112, and the first air outlet 112 forms an arc-shaped air outlet area through the guidance of the air ribs.

[0073] In some embodiments, the duct module 100 is installed on one side of the width direction X of the horizontal freezer 10. When the duct module 100 is set in the horizontal freezer 10, the first air outlet 112 is located above the return air outlet 114. The air outlet area of the first air outlet 112 is arc-shaped, so that the cold air blown out from the first air outlet 112 has an upward flow trend. After the upward cold air passes through the door body 230 of the horizontal door body 230, it can flow to the other side of the accommodating cavity 211 in the width direction X, so that the side of the accommodating cavity 211 away from the duct module 100 can be blown by the cold air, thereby improving the uniformity of the cold air in the accommodating cavity 211 as much as possible, thereby improving the cooling effect as much as possible.

[0074] Since the air outlet direction of the first air outlet 112 is arc-shaped, it has an upward air outlet direction as well as a left air outlet direction, that is, the first air outlet 112 also has a roughly horizontal air outlet direction, so that the cold air blown out by the first air outlet 112 can be blown directly into the area around the air duct module 100, thereby enabling the first air outlet 112 to discharge air at different levels and freeze objects in different positions.

[0075] The first air outlet 112 is located above the second air outlet 113 , and the second air outlet 113 is located above the return air outlet 114 .

[0076] Among them, the first air outlet 112, the second air outlet 113 and the return air outlet 114 are arranged in sequence from high to low, the first air outlet 112 is close to the top of the accommodating cavity 211, the return air outlet 114 is close to the bottom of the accommodating cavity 211, and the second air outlet 113 is roughly arranged in the middle area of the accommodating cavity 211, so that the cold air can form multiple different circulation areas, thereby improving the cooling effect.

[0077] Specifically, when users place items, they basically stack them from bottom to top. There are more items at the bottom and more cooling is required. A second air outlet 113 is set between the first air outlet 112 and the return air outlet 114, so that the cold air can be discharged roughly from the middle area of the cabinet 200 and can be blown to the bottom area of the accommodating cavity 211 as quickly as possible. Through the cooperation of the first air outlet 112 and the second air outlet 113, the cold air can be blown more evenly to different areas in the accommodating cavity 211, thereby achieving a better cooling effect.

[0078] The air duct module 100 is disposed on one side of the accommodating chamber 211 in the width direction X, with the first air outlet 112 disposed approximately at the top of the accommodating chamber 211 and the second air outlet 113 disposed approximately in the middle of the accommodating chamber 211. Since it is less likely that items will be placed at the top of the accommodating chamber 211, the cold air blown out from the first air outlet 112 can be blown as far as possible toward the other side of the accommodating chamber 211 in the width direction X, allowing the cold air to reach areas farther from the air duct module 100. The second air outlet 113 is disposed approximately in the middle of the accommodating chamber 211, allowing the cold air blown out from the second air outlet 113 to blow directly onto items near the air duct module 100. This allows the cold air to reach as many items in the accommodating chamber 211 as possible, thereby improving the cooling effect of the entire horizontal freezer 10.

[0079] That is to say, in the embodiment of the present application, the first air outlet 112 is located above the second air outlet 113, and the air outlet area of the first air outlet is arc-shaped, so that the cold air blown out from the air duct module 100 can be blown to different heights in the accommodating cavity 211, so that the objects in different areas can be directly blown by the cold air as much as possible, thereby improving the freezing effect.

[0080] See also Figure 3 and Figure 4 In some embodiments, the first air outlet 112 is at least partially curved. The first air outlet 112 is located at the top of the housing 120. The first air outlet 112 may be at least partially curved. The first air outlet 112 may be entirely curved, or part of the first air outlet 112 may be curved while the other part may be linear. The specific embodiment is not limited thereto.

[0081] The first air outlet 112 is located at the top of the shell 120 and is arc-shaped. The arc-shaped first air outlet 112 has multiple different air outlet directions. Since the first air outlet 112 is located at the top of the shell 120, the cold air blown out by the first air outlet 112 can blow upward and left, so that the upward cold air can flow to the left side of the cabinet 200 after passing through the guidance of the door body 230, and the cold air to the left can be blown directly to the area near the air duct module 100, so that the cold air can flow as much as possible inside the entire cabinet 200, thereby improving the cooling effect.

[0082] In some embodiments, the curvature of the first air outlet 112 is 80 to 100 degrees. The curvature of the first air outlet 112 refers to the curvature in the vertical plane. Specifically, the curvature of the first air outlet 112 can be 80 degrees, 82 degrees, 85 degrees, 90 degrees, 95 degrees, etc.

[0083] The curvature of the first air outlet 112 is 80 degrees to 100 degrees, so that the first air outlet 112 can cover the top and left side of the air duct module 100 as much as possible, so that the first air outlet 112 can have a vertical upward air outlet direction at the top of the shell 120 as much as possible, and a horizontal upward and left air outlet direction at the side of the shell 120. At the same time, it also has multiple inclined upward and left air outlet directions from vertical upward to horizontal left, so that the cold air can flow to different areas in the cabinet 200, so that the cold air can circulate in the cabinet 200, thereby improving the cooling effect.

[0084] In some embodiments, the housing 120 has a first surface 126a and a second surface 126b that are disposed at an angle to each other. The first air outlet 112 is located on the first surface 126a and the second surface 126b, respectively.

[0085] Among them, the first surface 126a is located at the top of the shell 120, the second surface 126b is located on the side of the shell 120, and the first air outlet 112 extends from the first surface 126a to the second surface 126b, so that part of the first air outlet 112 is located at the top of the shell 120 and part is located on the side of the shell 120. The middle transition area is connected by an arc transition, so that the entire first air outlet 112 is arc-shaped.

[0086] In some embodiments, there are multiple first air outlets 112, and the multiple first air outlets 112 are located at the same height of the air duct module 100. The multiple first air outlets 112 are all arc-shaped. That is, the cross-sections of the multiple first air outlets 112 in the vertical plane are all arc-shaped. The curvature of the multiple first air outlets 112 can be the same or different, and can be set according to actual conditions.

[0087] Multiple first air outlets 112 are arranged in sequence at intervals in the thickness direction Y, so that the first air outlets 112 are provided as evenly as possible in the thickness direction Y of the cabinet 200, so that the air blown out from the multiple first air outlets 112 can cover the plane formed by the width direction X and the thickness direction Y as much as possible, thereby increasing the coverage area of the cold air and thus improving the cooling effect.

[0088] In some embodiments, the second air outlet 113 is located on the second surface 126b. This allows the first air outlet 112 and the second air outlet 113 to be located on the same side of the housing, allowing the first air outlet 112 and the second air outlet 113 to discharge air along the width direction X of the cabinet 200. This allows the cold air to flow as much as possible in the width direction X of the cabinet 200 and reach further, allowing items in different areas to be blown by the cold air, thereby minimizing temperature unevenness inside the cabinet 200 and improving the cooling effect.

[0089] In some embodiments, the first air outlet 112 is provided with an air outlet grille 112a. Since the first air outlet 112 is arc-shaped and has an upwardly facing portion, in order to ensure the amount of cold air from the first air outlet 112, the opening area of the first air outlet 112 will not be set to be particularly small. Moreover, since the first air outlet 112 is set at the top of the cabinet 200, it is easy for some smaller items to enter the interior of the housing 120 through the first air outlet 112 when the user takes or puts things. Therefore, providing the air outlet grille 112a on the first air outlet 112 can reduce the opening area of a single hole in the first air outlet 112, thereby reducing the risk of smaller items entering the housing 120 through the first air outlet 112.

[0090] In some embodiments, the air outlet grille 112a is injection-molded with the housing 120. The air outlet grille 112a can be directly integrally formed with the housing 120 by injection molding, so that the air outlet grille 112a and the housing 120 form a whole. This can reduce the risk of the air outlet grille 112a falling off the housing 120, reduce the risk of the air outlet grille 112a falling into the housing 120, reduce the failure rate of the air duct module 100, and increase the service life of the air duct module 100.

[0091] In some embodiments, the air outlet grille 112a has a plurality of meshes 112b, the plurality of meshes 112b are arranged at intervals, and the maximum width of each mesh 112b is less than or equal to 1.5 mm.

[0092] The width of mesh 112b can be the distance between any two points on mesh 112b, with the maximum width being the distance between the two points on mesh 112b that are farthest apart. Since a grain of rice is approximately 1.5 mm long, the maximum width of mesh 112b is less than or equal to 1.5 mm. This minimizes the entry of rice grains or objects of similar size into housing 120, reduces the failure rate of air duct module 100, and increases the service life of air duct module 100.

[0093] In some embodiments, the air outlet grille 112 a is at least disposed in an upper region of the first air outlet 112 .

[0094] The upper region of the first air outlet 112 refers to the region where the airflow direction has an upward component, that is, the airflow direction within this region can be vertically upward, obliquely upward, or partially vertically upward and partially obliquely upward. The upper region of the first air outlet 112 is disposed toward the door 230. When the door 230 is opened, impurities are most likely to enter the housing 120 through this upper region. Providing the air outlet grille 112a in the upper region can minimize the risk of impurities entering the housing 120.

[0095] The air outlet grille 112a is at least arranged in the upper area of the first air outlet 112. It can be arranged only in the upper area of the first air outlet 112, or in the upper area of the first air outlet 112, or in other areas of the first air outlet 112 except the upper area.

[0096] In some embodiments, the shell 120 includes a front shell 121 and a rear shell 123, the front shell 121 includes a first shell section 121a, a second shell section 121b and a third shell section 121c, the second shell section 121b is respectively connected to the first shell section 121a and the third shell section 121c, the rear shell 123 is connected to the first shell section 121a to form an installation cavity 124, the second shell section 121b and the third shell section 121c are used to form a fixed cavity 125 for installing the evaporator 320 with the cabinet 200; wherein, the first air outlet 112 is arranged on the first shell section 121a, and the return air outlet 114 is arranged on the third shell section 121c.

[0097] See also Figure 2 and Figure 5 The shell 120 includes a front shell 121 and a rear shell 123. The front shell 121 and the rear shell 123 are connected. The front shell 121 includes a first shell segment 121a, a second shell segment 121b and a third shell segment 121c. The first shell segment 121a is located above the second shell segment 121b, and the second shell segment 121b is located above the third shell segment 121c. The first shell segment 121a and the rear shell 123 form an installation cavity 124 for accommodating the guide member 130. The rear shell 123 is provided with an air inlet 115, and the return air outlet 114 is provided in the third shell segment 121c and is connected to the fixed cavity 125.

[0098] When the air in the accommodating chamber 211 enters the fixed chamber 125 through the return air port 114, it flows toward the air inlet 115 under the action of the flow guide 130. The air entering the fixed chamber 125 is cooled by the evaporator 320 before flowing toward the mounting chamber 124 and finally blown into the accommodating chamber 211 through the first air outlet 112. In other words, the evaporator 320 is disposed between the return air port 114 and the air inlet 115, providing cooling during the air circulation process. This ensures that the air blowing out of the first air outlet 112 is always cold air, thereby improving the freezing effect.

[0099] It should be noted that the evaporator 320 is fixed within the fixed cavity 125 formed by the second shell section 121b, the third shell section 121c, and the cabinet body 200, which facilitates the assembly of the duct module 100 and the evaporator 320. During assembly, the duct module 100 is first assembled into a whole, the evaporator 320 is mounted at a set position in the accommodating cavity 211, and the entire duct module 100 is then assembled into the accommodating cavity 211. The second shell section 121b and the third shell section 121c are then mounted over the evaporator 320, forming a closed fixed cavity 125 with the main body 220. This allows air within the accommodating cavity 211 to enter the fixed cavity 125 through the return air port 114, be cooled by the evaporator 320, and then flow to the first air outlet 112.

[0100] In some embodiments, the third shell segment 121c is protruded from the second shell segment 121b, and the return air port 114 is disposed at an end of the third shell segment 121c away from the second shell segment 121b.

[0101] The third shell segment 121c protrudes from the second shell segment 121b, meaning that the third housing 120 protrudes from the second shell segment 121b in the width direction X. Specifically, the third shell segment 121c is positioned to the left of the second shell segment 121b in the width direction X, closer to the center of the accommodating chamber 211. The return air port 114 is positioned at the end of the third shell segment 121c away from the second shell segment 121b, and the first air outlet 112 is positioned on the first shell segment 121a. It can be considered that, in the width direction X, of the return air port 114 and the first air outlet 112, the return air port 114 is positioned closer to the center of the accommodating chamber 211. This allows the gas within the accommodating chamber 211 to more easily enter the fixed chamber 125 through the return air port 114, allowing the gas to remain in the fixed chamber 125 for an extended period. This increases the heat exchange time with the evaporator 320, improves the cooling effect on the air, and thus enhances the freezing effect.

[0102] See also Figure 6 In some embodiments, the air duct module 100 further includes a flow guide 140 disposed in the mounting cavity 124 , capable of distributing the air volume to the first air outlet 112 and the second air outlet 113 .

[0103] Among them, the front shell 121 and the rear shell 123 are relative to the cabinet body 200 of the refrigeration equipment. Among the front shell 121 and the rear shell 123, the rear shell 123 is arranged closer to the cabinet body 200, that is, the rear shell 123 is located behind the front shell 121, and the front shell 121 and the rear shell 123 are connected to form an installation cavity 124.

[0104] The air inlet 115 is arranged on the rear shell 123, and the first air outlet 112 and the second air outlet 113 are arranged on the front shell 121. After being cooled by the evaporator 320, the air can be blown from the first air outlet 112 and the second air outlet 113 to the cabinet 200 of the refrigeration equipment through the guide member 130. The air blown out from the first air outlet 112 and the second air outlet 113 is cold air.

[0105] Since refrigeration equipment generally has a certain height, in order to allow the cold air to be blown to different heights within the cabinet 200 as much as possible, the first air outlet 112 and the second air outlet 113 can be arranged at different heights. That is, the first air outlet 112 can be arranged above the second air outlet 113, or the second air outlet 113 can be arranged above the first air outlet 112.

[0106] That is, the first air outlet 112 and the second air outlet 113 are located at different positions of the shell 120. After the guide member 130 is installed in the installation cavity 124, the position of the guide member 130 is determined. Due to factors such as the direction of the guide member 130, the rotation speed of the guide member 130, the position between the first air outlet 112 and the guide member 130, and the position between the second air outlet 113 and the guide member 130, the air volume of the first air outlet 112 and the second air outlet 113 is unstable.

[0107] A guide member 140 is provided in the installation cavity 124. The guide member 140 can guide the cold air entering the installation cavity 124 to the first air outlet 112 and the second air outlet 113 respectively. The air volume in the installation cavity 124 can be distributed by the guide member 140, so that the air volume of the cold air flowing to the first air outlet 112 and the second air outlet 113 can be roughly stable, thereby making the air volume blown to the refrigeration equipment roughly stable, thereby ensuring the cooling capacity at different heights in the refrigeration equipment and improving the refrigeration effect of the refrigeration equipment.

[0108] Specifically, since users generally place frozen items at the bottom first, there will be more frozen items piled up at the bottom, so the demand for cooling capacity at the bottom is greater. The guide member 140 can be used to guide more cooling capacity to the bottom of the refrigeration device. Furthermore, since the cabinet 200 of the refrigeration device is roughly rectangular (long), the duct module 100 is mounted on one side wall of the cabinet 200, so that the other side wall is farthest from the duct module 100. Consequently, the frozen items near the opposite side wall absorb less cooling capacity. Alternatively, the air outlet at the top can be enlarged so that the cold air flows to a farther location, thereby freezing the frozen items farther from the duct module 100.

[0109] In some embodiments, the air guide 140 is mounted on the rear housing 123 and is sealed with the front housing 121. Since the air flows from the air inlet 115 to the first air outlet 112 and the second air outlet, the air guide 140 can be mounted on the rear housing 123 and is sealed with the front housing 121, so that the rear housing 123, the front housing 121 and the air guide 140 can form an air guide channel to guide the cold air to the first air outlet 112 and the second air outlet 113 respectively.

[0110] Specifically, the air guide 140 and the rear shell 123 are integrally formed, which can reduce the processing costs of the air guide 140 and the rear shell 123, reduce the sealing process between the rear shell 123 and the air guide 140, and reduce the manufacturing cost.

[0111] In some embodiments, the air inlet 115 is staggered with the first air outlet 112 and the second air outlet 113. This means that in the direction from the front shell 121 to the rear shell 123, the air inlet 115 is staggered with the first air outlet 112, and the air inlet 115 is staggered with the second air outlet 113. This means that the air inlet 115 and the first air outlet 112 are not directly connected, and the air inlet 115 and the second air outlet 113 are not directly connected. In the process of flowing to the first air outlet 112 and the second air outlet 113, the cold air may collide with the front shell 121 or the rear shell 123, thereby losing kinetic energy. The guide member 140 is provided in the installation cavity 124 to guide the cold air in the installation cavity 124, thereby reducing the loss of the cold air's kinetic energy and allowing the cold air to blow farther into the cabinet 200, thereby maximizing the uniformity of the cooling capacity in the cabinet 200 and improving the cooling effect of frozen items.

[0112] See also Figure 7 、 Figure 8 and Figure 9 In some embodiments, the first air outlet 112 includes a first left air outlet 112c and a first right air outlet 112d, the second air outlet 113 includes a second left air outlet 113c and a second right air outlet 113d, and the air guide 140 includes a first air guide portion 142 and a second air guide portion 145. The first air guide portion 142 and the second air guide portion 145 are respectively arranged on both sides of the air inlet 115, the first air guide portion 142 is arranged corresponding to the first left air outlet 112c and the second left air outlet 113c, and the second air guide portion 145 is arranged corresponding to the first right air outlet 112d and the second right air outlet 113d.

[0113] There are two first air outlets 112, namely a first left air outlet 112c and a first right air outlet 112d, which are located at the same height of the front shell 121. There are two second air outlets 113, namely a second left air outlet 113c and a second right air outlet 113d, which are located at the same height of the front shell 121.

[0114] For ease of description, with the view from the front housing 121 toward the rear housing 123, the first left air vent 112c and the second left air vent 113c are respectively located on the left side of the air inlet 115, and the first right air vent 112d and the second right air vent 113d are respectively located on the right side of the air inlet 115. The first left air vent 112c is located above the second left air vent 113c, and the first right air vent 112d is located above the second right air vent 113d.

[0115] Similarly, the first guide portion 142 is located on the left side of the air inlet 115, and the second guide portion 145 is located on the right side of the air inlet 115. The first guide portion 142 is used to guide air to the first left air outlet 112c and the second left air outlet 113c, and the second guide portion 145 is used to guide air to the first right air outlet 112d and the second right air outlet 113d.

[0116] Specifically, the shape of the first air guide portion 142 can be set according to the height of the first left air port 112c and the second left air port 113c and their positions relative to the air guide member 130. Similarly, the shape of the second air guide portion 145 can be set according to the height of the first right air port 112d and the second right air port 113d and their positions relative to the air guide member 130.

[0117] In some embodiments, the minimum distance between the first flow guide portion 142 and the flow guide member 130 is a first distance, and the minimum distance between the second flow guide portion 145 and the flow guide member 130 is a second distance;

[0118] When the flow guiding member 130 turns from the second flow guiding portion 145 to the first flow guiding portion 142 , the first distance is greater than the second distance.

[0119] The guide member 130 may be a centrifugal wind wheel, and the air inlet 115 may be roughly circular. The guide member 130 may be installed at the air inlet 115. The first left air inlet 112c, the first right air inlet 112d, the second left air inlet 113c, and the second right air inlet 113d are roughly distributed at the four symmetrical corners of the air inlet 115. The distance between the first guide portion 142 and the guide member 130 may be roughly considered to be the distance between the first guide portion 142 and the air inlet 115. Specifically, the distance between the first guide portion 142 and the air inlet 115 refers to the distance between any point on the first guide portion 142 and the edge of the air inlet 115 along the radial direction of the air inlet 115. The minimum distance between the first guide portion 142 and the guide member 130 may be considered to be the minimum distance between the first guide portion 142 and the edge of the air inlet 115.

[0120] Since the first air guide portion 142 extends from the air inlet 115 to the first left air port 112 c and the second left air port 113 c respectively, it can be considered that the minimum distance between the first air guide portion 142 and the flow guiding member 130 is the first flow channel between the first air guide portion 142 and the air inlet 115 .

[0121] Similarly, the distance between the second air guide portion 145 and the air guide member 130 can be roughly considered to be the distance between the second air guide portion 145 and the air inlet 115. Specifically, the distance between the second air guide portion 145 and the air inlet 115 refers to the distance between any point on the second air guide portion 145 and the edge of the air inlet 115 along the radial direction of the air inlet 115. The minimum distance between the second air guide portion 145 and the air guide member 130 can be considered to be the minimum distance between the second air guide portion 145 and the edge of the air inlet 115.

[0122] Since the second guide portion 145 extends from the air inlet 115 to the first right air port 112 d and the second right air port 113 d respectively, it can be considered that the minimum distance between the second guide portion 145 and the flow guide member 130 is the second flow channel between the second guide portion 145 and the air inlet 115 .

[0123] The flow guide 130's rotation from the second guide portion 145 to the first guide portion 142 refers to the direction from the front housing 121 toward the rear housing 123, and the flow guide 130 rotates counterclockwise. During the rotation of the flow guide 130, air entering the accommodating chamber 211 from the air inlet 115 first flows toward the second guide portion, and then toward the first guide portion 142. If the first distance is greater than the second distance, it indicates that the first flow path is greater than the second flow path. Generally, the flow rate in the second guide portion 145 that passes first will be slightly greater than the flow rate in the first guide portion 142. The first flow channel is larger than the second flow channel, so that the wind speed flowing through the first guide part 142 and the second guide part 145 may be roughly the same, that is, the air volume blown out from the first left air port 112c, the second left air port 113c, the first right air port 112d and the second right air port 113d is roughly the same, and the air volume of different air outlets is made roughly the same as much as possible, so as to ensure that the cooling amount of cold air blown to various parts of the refrigeration equipment is the same as much as possible, thereby improving the freezing effect of the refrigeration equipment.

[0124] In some embodiments, the first guide portion 142 includes a first upper guide section 142a and a first lower guide section 142b, one end of the first upper guide section 142a and one end of the first lower guide section 142b are connected to form a first connection point 142c, one end of the first upper guide section 142a away from the first connection point 142c extends to the first left air outlet 112c, and one end of the first lower guide section 142b away from the first connection point 142c extends to the second left air outlet 113c.

[0125] The first connection point 142c is the point on the first air guide portion 142 closest to the air inlet 115. That is, the first connection point 142c is the point on the entire first air guide portion 142 closest to the guide member 130. The first upper guide section 142a extends from the air inlet 115 to below the first left air outlet 112c, directing cool air toward the first left air outlet 112c. The first lower guide section 142b extends from the air inlet 115 to above the second left air outlet 113c, directing cool air toward the second left air outlet 113c. Specifically, the first upper guide section 142a and the first lower guide section 142b are disposed between the first left air outlet 112c and the second left air outlet 113c.

[0126] The shape of the first upper guide section 142a can be straight, curved, or a combination of straight and curved shapes, and is not specifically limited. Similarly, the shape of the first lower guide section 142b can be straight, curved, or a combination of straight and curved shapes.

[0127] In some embodiments, along the height direction Z of the housing 120 , the inclination angle of the first upper guide section 142 a is greater than the inclination angle of the first lower guide section 142 b .

[0128] The height direction Z of the housing 120 refers to the height direction Z (vertical direction) of the entire air duct module 100 after being installed in the refrigeration equipment. Along the height direction Z of the housing 120, the inclination angle of the first upper air guide section 142a can be considered as the angle of the first upper air guide section 142a in the vertical direction. A larger inclination angle of the first upper air guide section 142a indicates a flatter first upper air guide section 142a and a slower air diversion. A smaller inclination angle of the first upper air guide section 142a indicates a steeper first upper air guide section 142a and a faster air diversion.

[0129] Similarly, the greater the inclination angle of the first lower guide section 142b in the height direction Z of the housing 120, the flatter the first lower guide section 142b is, and the slower the flow diversion is. The smaller the inclination angle of the first lower guide section 142b is, the steeper the first lower guide section 142b is, and the faster the flow diversion is.

[0130] The greater inclination angle of the first upper guide section 142a than the first lower guide section 142b indicates that the first upper guide section 142a is flatter than the first lower guide section 142b. Since the first upper guide section 142a is located above the first lower guide section 142b, the flow guide 130 turns from the first upper guide section 142a to the first lower guide section 142b. The flow velocity through the upper section is greater than that through the lower section. This means that the first lower guide section 142b is steeper, balancing the flow difference between the upper and lower sections, ensuring that the airflow volumes of the first left air outlet 112c and the second left air outlet 113c are approximately the same.

[0131] In some embodiments, the angle between the first upper guide section 142a and the first lower guide section 142b is 0 to 90 degrees. Since the first upper guide section 142a and the first lower guide section 142b are connected at the first connection point 142c and extend upward and downward respectively (in different directions), the smaller the angle between the first upper guide section 142a and the first lower guide section 142b, the closer the distance between the first upper guide section 142a and the first lower guide section 142b is, so that the space above the first upper guide section 142a and / or below the first lower guide section 142b is larger, and more cold air can be directed to the first left air outlet 112c and the second left air outlet 113c, thereby increasing the airflow volume of the first left air outlet 112c and the second left air outlet 113c.

[0132] Specifically, the included angle between the first upper guide section 142a and the first lower guide section 142b may be 25°, 30°, 35°, 45°, 60°, 65°, etc.

[0133] In some embodiments, the second guide portion 145 includes a second upper guide section 145a and a second lower guide section 145b, one end of the second upper guide section 145a and one end of the second lower guide section 145b are connected to form a second connection point 145c, one end of the second upper guide section 145a away from the second connection point 145c extends to the first right air outlet 112d, and one end of the second lower guide section 145b away from the second connection point 145c extends to the second right air outlet 113d.

[0134] The second connection point 145c is the point on the second air guide portion 145 closest to the air inlet 115, that is, the second connection point 145c is the point on the entire second air guide portion 145 closest to the guide member 130. The second upper guide section 145a extends from the air inlet 115 to below the first right air outlet 112d, directing the cool air to the first right air outlet 112d. The second lower guide section 145b extends from the air inlet 115 to above the second right air outlet 113d, directing the cool air to the second right air outlet 113d. Specifically, the second upper guide section 145a and the second lower guide section 145b are disposed between the first right air outlet 112d and the second right air outlet 113d.

[0135] The shape of the second upper guide section 145a can be straight, curved, or a combination of straight and curved shapes, and is not specifically limited. Similarly, the shape of the second lower guide section 145b can be straight, curved, or a combination of straight and curved shapes.

[0136] In some embodiments, along the height direction Z of the housing 120 , the inclination angle of the second upper guide section 145 a is greater than the inclination angle of the second lower guide section 145 b .

[0137] The height direction Z of the housing 120 refers to the height direction Z (vertical direction) of the entire air duct module 100 after being installed in the refrigeration equipment. Along the height direction Z of the housing 120, the inclination angle of the second upper air guide section 145a can be considered as the angle of the second upper air guide section 145a in the vertical direction. The larger the inclination angle of the second upper air guide section 145a, the flatter the second upper air guide section 145a, and the slower the air diversion. The smaller the inclination angle of the second upper air guide section 145a, the steeper the second upper air guide section 145a, and the faster the air diversion.

[0138] Similarly, the greater the inclination angle of the second lower guide section 145b in the height direction Z of the housing 120, the flatter the second lower guide section 145b is, and the slower the flow diversion is. The smaller the inclination angle of the second lower guide section 145b is, the steeper the second lower guide section 145b is, and the faster the flow diversion is.

[0139] The greater inclination angle of the second upper guide section 145a than the second lower guide section 145b indicates that the second upper guide section 145a is flatter than the second lower guide section 145b. Since the second upper guide section 145a is located above the second lower guide section 145b, the flow guide 130 is directed from the first lower guide section 142b to the second upper guide section 145a. The flow velocity through the upper section is greater than that through the lower section. This is because the lower second lower guide section 145b is steeper, balancing the flow difference between the upper and lower sections, ensuring that the air volumes of the first right air outlet 112d and the second right air outlet 113d are approximately the same.

[0140] In some embodiments, the angle between the second upper guide section 145a and the second lower guide section 145b is 0 to 90 degrees. Since the second upper guide section 145a and the second lower guide section 145b are connected at the second connection point 145c and extend upward and downward respectively (in different directions), the smaller the angle between the second upper guide section 145a and the second lower guide section 145b, the closer the distance between the second upper guide section 145a and the second lower guide section 145b is, resulting in a larger space above the second upper guide section 145a and / or below the second lower guide section 145b, which can guide more cold air to the first right air outlet 112d and the second right air outlet 113d, thereby increasing the airflow volume of the first right air outlet 112d and the second right air outlet 113d.

[0141] Specifically, the included angle between the second upper guide section 145a and the second lower guide section 145b may be 25°, 35°, 40°, 45°, 55°, 60°, 65°, 70°, etc.

[0142] In some embodiments, when the air guide member 130 is turned from the second air guide portion 145 to the first air guide portion 142 , the air guide angle of the first air guide portion 142 is smaller than the air guide angle of the second air guide portion 145 .

[0143] Among them, the wind guide angle of the first guide portion 142 refers to the angle between the first upper guide section 142a and the first lower guide section 142b. Since the first upper guide section 142a and the first lower guide section 142b are not in the same shape (part of the first upper guide section 142a is straight and part is arc-shaped, and the curvature of different sections may be different; part of the first lower guide section 142b is straight and part is arc-shaped, and the curvature of different sections may be different), the angle between the first upper guide section 142a and the first lower guide section 142b refers to the angle at the first connection point 142c.

[0144] The wind guide angle of the second air guide portion 145 refers to the angle between the second upper air guide section 145a and the second lower air guide section 145b. Since the second upper air guide section 145a and the second lower air guide section 145b are not in the same shape (part of the second upper air guide section 145a is straight and part is arc-shaped, and the curvature of different sections may be different; part of the second lower air guide section 145b is straight and part is arc-shaped, and the curvature of different sections may be different), the angle between the second upper air guide section 145a and the second lower air guide section 145b refers to the angle at the second connection point 145c.

[0145] The wind guide angle of the first guide portion 142 is smaller than that of the second guide portion 145 , which means that the distance between the first upper guide section 142a and the first lower guide section 142b is closer, and the space above and below the first upper guide section 142a and the first lower guide section 142b is relatively large. On the contrary, it shows that the distance between the second upper guide section 145a and the second lower guide section 145b is closer, and the space above and below the second upper guide section 145a and the second lower guide section 145b is relatively small. Since the second guide part 145 turns to the first guide part 142, the corresponding position of the second guide part 145 is the air inlet side, and the corresponding position of the first guide part 142 is the air outlet side. The air volume on the air inlet side is greater than the air volume on the air outlet side, and the space above and below the first upper guide section 142a and the first lower guide section 142b is relatively large, and the space above and below the second upper guide section 145a and the second lower guide section 145b is relatively small, which can balance the air volume flowing to the first left air outlet, the second left air outlet 113c, the first right air outlet and the second right air outlet, so that the air volume of the four air outlets is roughly balanced and stable.

[0146] In some embodiments, the air guide 140 further includes a third air guide portion 146 . The third air guide portion 146 is disposed below the air guide 130 and is configured to guide the air to the second left air outlet 113 c and the second right air outlet 113 d .

[0147] The third air guide portion 146 is located below the rear shell 123 and can guide the cold air to the second left air port 113c and the second right air port 113d, so that the air volume of the second left air port 113c and the second right air port 113d is roughly the same, thereby improving the uniformity of the air outlet as much as possible.

[0148] See also Figure 10 and Figure 11 In some embodiments, the air duct module 100 further includes a fixing cover 160 and a fixing 150 , and the shell 120 has a mounting groove 128 ; the fixing 150 is disposed in the mounting groove 128 and is used to fix the shell 120 and the cabinet 200 of the refrigeration equipment, and the cover 160 covers the mounting groove 128 .

[0149] The installation cavity 124 and the installation groove 128 can be two independent cavities, that is, the installation cavity 124 and the installation groove 128 are not connected. When the guide member 130 is installed inside the installation cavity 124 and the air duct module 100 is fixed to the refrigeration equipment, the guide member 130 will not be exposed to the outside, which can avoid damage to the guide member 130 during the assembly of the air duct module 100 as much as possible.

[0150] Of course, in some other embodiments, the installation cavity 124 and the installation groove 128 may also be partially connected, and there is no specific limitation on this.

[0151] In the embodiment of the present application, for the convenience of description, the height direction, width direction X and thickness direction Y of the shell 120 are defined. As shown in the figure, the mounting groove 128 can be set at the top of the entire shell 120. In the process of installing the air duct module 100 to the refrigeration equipment, the mounting groove 128 is set close to the door body 230 of the refrigeration equipment, that is, the mounting groove 128 is closest to the door body 230 of the refrigeration equipment. During installation, after the door body 230 is opened, it is convenient for the fixing part 150 to pass through the shell 120 and the cabinet body 200 of the refrigeration equipment, thereby facilitating the assembly of the air duct module 100.

[0152] In an embodiment of the present application, the fixing member 150 is arranged in the mounting groove 128 and can fix the shell 120 and the cabinet 200, and the cover 160 covers the mounting groove 128, which can shield the fixing member 150 in the mounting groove 128, so that the cover 160 and the shell 120 can form a whole, and the fixing member 150 can be hidden in the mounting groove 128, avoiding the fixing member 150 from being exposed, so that the appearance of the entire air duct module 100 is neat.

[0153] In addition, the cover 160 shields the fixing member 150 in the installation groove 128 to prevent the fixing member 150 from being exposed, and can also reduce the corrosion of the fixing member 150 due to the low temperature or condensed water in the refrigeration equipment, and can also increase the service life of the fixing member 150.

[0154] See also Figure 12 In some embodiments, the shell 120 is provided with a fixing hole 129a, which is connected to the installation groove 128. Part of the fixing member 150 is accommodated in the installation groove 128, and part of the fixing member 150 is passed through the fixing hole 129a for fixed connection with the cabinet 200.

[0155] During the installation process, the fixing member 150 can be placed in the installation groove 128 first, and then pushed toward the cabinet 200 so that the fixing member 150 passes through the fixing hole 129a and is fixedly connected to the cabinet 200.

[0156] Specifically, the fixing member 150 can be a screw, bolt, or the like. A threaded hole can be provided in the cabinet body 200, and the wall of the fixing hole 129a can be threaded or not. During assembly, the fixing member 150 is first inserted into the fixing hole 129a, and then rotated to lock the fixing member 150 within the cabinet body 200.

[0157] It should be noted that the air duct module 100 is installed in the cabinet 200 and placed on a supporting surface. The fixing member 150 only plays a fixing role and basically does not bear the gravity of the air duct module 100.

[0158] In some embodiments, the cover plate 160 is snap-fitted to the housing 120. After the housing 120 and the cabinet 200 are fixed, the cover plate 160 is placed over the mounting groove 128 to snap-fit the cover plate 160 to the housing 120, and then the cover plate 160 is mounted on the housing 120.

[0159] As for the method of engaging the cover plate 160 with the housing 120, one of the cover plate 160 and the housing 120 may be provided with an engaging portion 162, and the other may be provided with an engaging hole 129b, with the engaging portion 162 engaging with the engaging hole 129b. In other words, the engaging portion 162 may be provided on the cover plate 160, and the engaging hole 129b may be provided on the housing 120. Alternatively, the engaging hole 129b may be provided on the cover plate 160, and the engaging portion 162 may be provided on the housing 120. This is not particularly limited.

[0160] A specific description will be given using the example of a case where the clamping portion 162 is provided on the cover plate 160 and the clamping hole 129b is provided on the housing 120. The clamping portion 162 is provided below the cover plate 160. After the cover plate 160 is clamped to the housing 120, the cover plate 160 can also cover the clamping portion 162, thereby preventing the connection between the clamping portion 162 and the clamping hole 129b from being exposed, thereby improving the aesthetic appearance of the entire air duct module 100.

[0161] See also Figure 12 and Figure 13 Specifically, the snap-fit portion 162 may include a connecting section 162a and a snap-fit section 162b, one end of the connecting section 162a is connected to the cover plate 160, and the other section is connected to the snap-fit section 162b, the connecting section 162a is passed through the snap-fit hole 129b, and the snap-fit section 162b abuts against the side of the snap-fit hole 129b away from the cover plate 160, so that the cover plate 160 can be snap-fitted to the shell 120.

[0162] Multiple engaging portions 162 and engaging holes 129b may be provided. For example, if the cover plate 160 is rectangular, at least one engaging portion 162 may be provided on each side of the cover plate 160. Accordingly, multiple engaging holes 129b may also be provided, with one engaging portion 162 engaging with one engaging hole 129b. The number of engaging portions 162 and engaging holes 129b may be set based on actual conditions and is not limited.

[0163] See also Figure 12 and Figure 14 In some embodiments, the housing 120 includes a front shell 121 and a rear shell 123 . The front shell 121 and the rear shell 123 are connected to form a mounting cavity 124 . The mounting groove 128 is provided in the rear shell 123 .

[0164] Among them, the shell 120 can be a two-section shell 120 or a three-section shell 120. The front shell 121 and the rear shell 123 are relative to the cabinet body 200 of the refrigeration equipment. Among the front shell 121 and the rear shell 123, the rear shell 123 is arranged closer to the cabinet body 200, that is, the rear shell 123 is located behind the front shell 121, and the front shell 121 and the rear shell 123 are connected to form an installation cavity 124.

[0165] Since the mounting groove 128 is mainly used to accommodate the fixing member 150 and the rear shell 123 is fixedly connected to the cabinet 200 , providing the mounting groove 128 on the rear shell 123 can facilitate the assembly between the rear shell 123 and the cabinet 200 .

[0166] In some embodiments, the rear housing 123 includes a body 123a and a fixing portion 123b protruding from the body 123a, with a mounting groove 128 disposed in the fixing portion 123b. The fixing portion 123b protruding from the body 123a means that the fixing portion 123b is disposed protruding from the body 123a in the direction of the front housing 121. Of course, to accommodate the fixing portion 123b, a groove 121d may be disposed on the front housing 121, and the fixing portion 123b may be disposed within the groove 121d.

[0167] Since the thickness of the main body 123a is very thin, it is impossible to directly open the installation groove 128 that can accommodate the fixing member 150 on the main body 123a. In this way, the installation groove 128 that can accommodate the fixing member 150 can be set without increasing the thickness of the rear shell 123. The process is simplified and the structure is relatively simple.

[0168] Specifically, the body 123 a and the fixing portion 123 b may be integrally formed, thereby reducing the number of manufacturing steps for the entire rear shell 123 and lowering the manufacturing cost of the housing 120 .

[0169] In some embodiments, the cover 160 is snap-fitted to both the front shell 121 and the rear shell 123. Since both the front shell 121 and the rear shell 123 are relatively thin, snap-fitting the cover 160 to both the front shell 121 and the rear shell 123 can improve the stability of the cover 160 and reduce the risk of the cover 160 detaching.

[0170] Of course, in addition to this, the cover plate 160 can also be clamped only with the front shell 121, or the cover plate 160 can be clamped only with the rear shell 123. The clamping methods of the cover plate 160 and the front shell 121 and the rear shell 123 can be the same or different, and are not specifically limited.

[0171] The connection method between the cover plate 160 and the housing 120 has been described above. The connection method between the front housing 121 and the rear housing 123 will be described below. In some embodiments, the front housing 121 can be snap-fitted to the rear housing 123. As for the specific snap-fitting method, a snap-fitting hole can be provided on the front housing 121, a snap-fitting portion can be provided on the rear housing 123, and the snap-fitting hole and the snap-fitting portion can be snap-fitted together. Alternatively, a snap-fitting hole can be provided on the rear housing 123, a snap-fitting portion can be provided on the front housing 121, and the snap-fitting portion can be snap-fitted together.

[0172] Likewise, a plurality of latch holes and latch portions may be provided, and may be provided along the edges of the front shell 121 and the rear shell 123 , respectively.

[0173] In some other embodiments, the front shell 121 may have a first connection hole, the rear shell 123 may have a second connection hole, and the air duct module 100 may further include a connector 170 (see Figure 1 ), the connecting member 170 is passed through the first connecting hole and the second connecting hole.

[0174] The connecting member 170 may be a screw or a nut. Threads may be provided on the inner walls of the first connecting hole and the second connecting hole, and the front shell 121 and the rear shell 123 may be locked by the connecting member 170 .

[0175] It should be noted that the above description describes the connection method between the two front shells 121 and the rear shell 123. Both connection methods can exist simultaneously, or only one of them can be used. That is, the front shell 121 and the rear shell 123 can be connected by both a snap connection and the connector 170, or the front shell 121 and the rear shell 123 can be connected only by a snap connection, or the front shell 121 and the rear shell 123 can be connected only by the connector 170. The specific method is not limited.

[0176] See also Figure 15 and Figure 16 Based on the same utility model concept, the embodiment of the present application further provides a horizontal freezer 10 , which includes a cabinet body 200 and an air duct module 100 . The cabinet body 200 has an accommodating cavity 211 for accommodating the air duct module 100 .

[0177] The horizontal freezer 10 is mainly used for refrigerating items. The cabinet body 200 is the main body 220 structure of the entire horizontal freezer 10. It can provide an installation basis for structures such as the air duct module 100, compressor 310, evaporator 320, condenser, etc., and can also protect the above-mentioned electronic components.

[0178] The cabinet 200 includes a main body 220 and a door 230 connected to the main body 220. The door 230 covers the opening of the main body 220. A refrigerated chamber 211 is provided within the main body 220, and the items to be refrigerated are placed within the refrigerated chamber 211. The cold air blown out by the air duct module 100 freezes the items. The main body 220 includes an inner liner 221 and an outer shell 223. The space between the inner liner 221 and the outer shell 223 is filled with a foam layer. An electrical chamber 215 is located between the inner liner 221 and the outer shell 223, which accommodates the compressor 310. The electrical control box is also located within the electrical chamber 215.

[0179] The air duct module 100 is arranged in the accommodating cavity 211, and the first air outlet 112, the second air outlet 113 and the return air outlet 114 are all connected to the accommodating cavity 211. The air duct module 100 blows the cold air after being cooled by the evaporator 320 from the first air outlet 112 and the second air outlet 113 into the accommodating cavity 211. The gas in the accommodating cavity 211 can return to the vicinity of the evaporator 320 through the return air outlet 114, and after being cooled by the evaporator 320, it is blown into the accommodating cavity 211 again through the first air outlet 112 and the second air outlet 113, and the cycle is repeated.

[0180] See also Figure 17 and Figure 18In some embodiments, the accommodating cavity 211 has a bottom surface 213 and a stepped surface 214 higher than the bottom surface 213 , and the return air outlet 114 is located on the stepped surface 214 .

[0181] When users place items in the storage chamber 211, they usually start to pile them up from the bottom of the storage chamber 211. That is, the bottom of the storage chamber 211 is most likely to be filled with items. If the return air vent 114 is directly set at the bottom of the box, the items will easily block the return air vent 114, resulting in the air in the storage chamber 211 being unable to return, which can easily cause the air in the storage chamber 211 to be unable to circulate, thereby resulting in insufficient cooling capacity in the storage chamber 211 and affecting the cooling effect.

[0182] In the embodiment of the present application, the return air vent 114 is disposed on a stepped surface 214. The stepped surface 214 is higher than the bottom surface 213 of the accommodating chamber 211, so that the return air vent 114 is at a certain height relative to the bottom surface 213 of the accommodating chamber 211. This height prevents the return air vent 114 from being blocked when users stack items, allowing the air in the accommodating chamber 211 to circulate, thereby improving the cooling effect of the entire horizontal freezer 10.

[0183] Among them, the return air outlet 114 is located on the step surface 214, which does not mean that the return air outlet 114 is provided on the step surface 214, but means that the position of the return air outlet 114 is on the step surface 214, that is, the return air outlet 114 can be provided above the step surface 214, or one side can be against the step surface 214.

[0184] The main body 220 is generally a rectangular parallelepiped. For ease of description, the height direction Z, width direction X, and thickness direction Y are defined separately. When the chest freezer 10 is in use, the vertical direction is the height direction Z, and the projection of the main body 220 in the vertical direction is a rectangle. The direction along which the long side lies is the width direction X, and the direction along which the wide side lies is the thickness direction Y.

[0185] Since the thickness of the air duct module 100 is smaller than its width, and the width of the air duct module 100 is substantially equal to the thickness of the cabinet 200, the air duct module 100 can be installed on a side surface of the cabinet 200 in the width direction X, so that the air blown out from the first air outlet 112 can cover as much of the side surface formed by the length direction and the width direction X as possible. The air blown out from the first air outlet 112 can cover the entire interior of the cabinet 200, thereby improving the uniformity of freezing as much as possible.

[0186] Similarly, for ease of description, six directions are defined: up, down, left, right, front, and back. In the height direction Z, the direction closest to the opening is up, and the direction closest to the bottom surface 213 is down. In the width direction X, the directions are left and right, respectively. The installation location of the duct module 100 is right, and the opposite side is left. In the thickness direction Y, the connection between the door 230 and the main body 220 is back, and the opposite side is front.

[0187] In some embodiments, the return air outlet 114 is tilted along the height direction Z of the cabinet 200 .

[0188] For the convenience of description, the return air outlet 114 is defined as having a first side 114a and a second side 114b that are relatively arranged. The second side 114b is located above the first side 114a, and the first side 114a abuts against the step surface 214. Along the height direction Z of the cabinet 200, the inclined setting of the return air outlet 114 means that the first side 114a and the second side 114b are staggered in the width direction X or the thickness direction Y, that is, along the height direction Z, the projections of the first side 114a and the second side 114b on the bottom surface 213 are staggered.

[0189] Specifically, the inclination direction of the return air outlet 114 can be toward the bottom surface 213 of the accommodating cavity 211 (that is, the second side 114b is set on the left side of the first side 114a), or it can be toward the opening of the accommodating cavity 211 (that is, the first side 114a is set on the left side of the second side 114b).

[0190] The return air outlet 114 is tilted so that it has a certain angle in the height direction Z. The return air outlet 114 can form a smaller cavity with the step surface 214, thereby providing space for the gas in the accommodating cavity 211 to flow toward the return air outlet 114, reducing the risk of the return air outlet 114 being blocked, allowing cold air to circulate in the accommodating cavity 211, and improving the cooling effect of the entire horizontal freezer 10.

[0191] In some embodiments, the return air vent 114 is disposed toward the bottom surface 213, meaning that the return air vent 114 is disposed obliquely downward, i.e., the second side 114b is disposed above the first side 114a and to the left of the first side 114a. The return air vent 114 is disposed toward the bottom surface 213 so that the return air direction of the return air vent 114 has a downward return air direction trend.

[0192] Since the return air outlet 114 is arranged on the step surface 214 and has a certain height with the bottom surface 213 of the accommodating cavity 211, the cold air may not be able to flow into the area between the step surface 214 and the bottom surface 213. The return air outlet 114 is arranged toward the bottom surface 213 so that there is a downward return air direction, and thus the cold air can flow into the area between the step surface 214 and the bottom surface 213, and can freeze the objects placed between the step surface 214 and the bottom surface 213, thereby improving the freezing effect.

[0193] In some embodiments, along the height direction Z of the cabinet 200 , the return air outlet 114 and the projection of the step surface 214 on the bottom surface 213 at least partially overlap.

[0194] Since the return air outlet 114 is arranged at an angle, the projection of the return air outlet 114 on the bottom surface 213 is also roughly rectangular, and the projections of the return air outlet 114 and the step surface 214 on the bottom surface 213 are at least partially overlapped, that is, the second side 114b may be located inside the projection of the step surface 214 on the bottom surface 213, or may be located outside the projection of the step surface 214 on the bottom surface 213.

[0195] If the projections of the return air outlet 114 and the step surface 214 on the bottom surface 213 at least partially overlap, it means that the first side 114a is ensured to be located on the step surface 214, and the second side 114b can be located within the area of the step surface 214 or on the left side of the step surface 214. There is no specific limitation on the position of the first side 114a.

[0196] In some embodiments, the horizontal freezer 10 further includes a compressor 310 , and the cabinet body 200 further includes an electrical cavity 215 . The compressor 310 is installed in the electrical cavity 215 , and the step surface 214 is located above the electrical cavity 215 .

[0197] The compressor 310 is a necessary component in the refrigeration system of the horizontal freezer 10. A chamber for accommodating the compressor 310 needs to be set in the cabinet body 200. The electrical chamber 215 and the accommodating chamber 211 are independent chambers. The main body 220 includes an inner liner 221 and an outer shell 223. The accommodating chamber 211 is set in the inner liner 221, and the electrical chamber 215 is set between the inner liner 221 and the outer shell 223.

[0198] Since the entire cabinet body 200 has a roughly rectangular appearance, after the electrical chamber 215 is provided between the inner liner 221 and the outer shell 223, the inner liner 221 is not a regular rectangular parallelepiped, that is, a step surface 214 is formed above the electrical chamber 215. By arranging the return air vent 114 at this position, the existing structure of the horizontal freezer 10 can be utilized, and there is no need to separately provide a step surface 214 higher than the bottom surface 213 in the accommodating chamber 211. This can not only improve the problem of blockage of the return air vent 114, but also reduce the number of components in the horizontal freezer 10 and reduce the volume occupied by the accommodating chamber 211.

[0199] In some embodiments, the cabinet 200 has a thickness direction Y and a width direction X. The length of the cabinet 200 in the width direction X is greater than the length in the thickness direction Y. The return air outlet 114 is arranged toward the width direction X.

[0200] Among them, the entire air duct module 100 is installed on the right side of the accommodating cavity 211, and the return air outlet 114 is set towards the width direction X so that the return air direction is roughly along the entire width direction X, thereby allowing the cold air to flow and circulate roughly in the entire cabinet 200, thereby improving the freezing effect.

[0201] In some embodiments, along the height direction Z of the cabinet 200 , the second air outlet 113 is located at 3 / 5 to 4 / 5 of the cabinet 200 .

[0202] Among them, the second air outlet 113 is set at 3 / 5 to 4 / 5 of the cabinet body 200, which means that in the height direction Z of the cabinet body 200 and from bottom to top, the second air outlet 113 is roughly located at 0.6 to 0.8 of the cabinet body 200, so that the second air outlet 113 is roughly located in the middle area of the horizontal freezer 10 in the height direction Z, so that the horizontal freezer 10 can directly blow towards the items in the accommodating cavity 211, and can freeze the items in the area close to the air duct module 100, thereby improving the refrigeration effect.

[0203] In some embodiments, the horizontal freezer 10 further includes a refrigeration element 330, which is disposed around the outer wall of the inner liner 221 (the refrigeration element 330 is disposed between the inner liner 221 and the outer shell 223), and is disposed at least within the region between the stepped surface 214 and the bottom surface 213. The refrigeration element 330 is connected in series or in parallel with the evaporator 320. Because the return air inlet 114 is disposed on the stepped surface 214, the region between the stepped surface 214 and the bottom surface 213 may not receive cold air. Disposing the refrigeration element 330 in the region between the stepped surface 214 and the bottom surface 213 allows the refrigeration element 330 to cool this region, thereby ensuring a cooling effect for the entire horizontal freezer 10.

[0204] The refrigeration element 330 is at least arranged in the area between the step surface 214 and the bottom surface 213, which means that the refrigeration element 330 can be arranged only between the step surface 214 and the bottom surface 213, or can be arranged between the step surface 214 and the bottom surface 213 and above the step surface 214 at the same time.

[0205] The refrigeration component 330 may be a refrigeration coil or a patch evaporator.

[0206] In some embodiments, along the height direction Z of the cabinet 200, the return air vent 114 is located at 1 / 4 to 1 / 2 of the cabinet 200. This means that in the vertical direction and from bottom to top, the return air vent 114 is located in the 1 / 4 to 1 / 2 area of the cabinet 200, that is, the return air vent 114 is roughly located in the lower area of the entire cabinet 200 but is still a certain distance away from the bottom surface 213 of the accommodating cavity 211. This allows the return air vent 114 to be located near the bottom area of the accommodating cavity 211, reducing the risk of blockage of the return air vent 114. This allows the cold air to flow to the bottom of the accommodating cavity 211 as much as possible, allowing the cold air to penetrate the entire internal space of the accommodating cavity 211 as much as possible, thereby improving the freezing effect.

[0207] See also Figure 19 and Figure 20 In some embodiments, a reinforcement portion 240 is provided on the cabinet 200 , and the fixing member 150 fixedly connects the shell 120 and the reinforcement portion 240 .

[0208] The cabinet 200 includes an inner liner 221 and an outer shell 223, with a foam layer filling the space between the inner liner 221 and the outer shell 223. Generally, the inner liner 221 is relatively thin, and the reinforcement 240 is disposed between the inner liner 221 and the outer shell 223, allowing the fixing member 150 to pass through the reinforcement 240, thereby improving the fixing effect of the fixing member 150.

[0209] See also Figure 21 In some embodiments, the cabinet 200 is provided with a first positioning portion 250, and the housing 120 is provided with a second positioning portion 129c, and the first positioning portion 250 and the second positioning portion 129c cooperate with each other.

[0210] The first positioning portion 250 can be a positioning groove, and the second positioning portion 129c can be a protrusion. When assembling the air duct module 100 in the accommodating cavity 211, the second positioning portion 129c can be inserted into the first positioning portion 250 first, so as to position the air duct module 100 and facilitate the installation of the air duct module 100.

[0211] Among them, the first positioning portion 250 is arranged on the step surface 214, and the step surface 214 is higher than the bottom surface of the accommodating cavity 211. Since the appearance of the entire cabinet 200 is roughly a rectangular parallelepiped, after the electrical cavity 215 is set between the inner liner 221 and the outer shell 223, the inner liner 221 is not a regular rectangular parallelepiped, that is, a step surface 214 will be formed above the electrical cavity 215. By setting the entire air duct module at this position, the existing structure of the horizontal freezer 10 can be utilized, and there is no need to separately set a step surface 214 higher than the bottom surface 213 in the accommodating cavity 211. It can not only improve the problem of blockage of the return air outlet 114, but also reduce the number of components in the horizontal freezer 10 and reduce the volume occupied by the accommodating cavity 211.

[0212] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0213] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0214] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An air duct module, characterized in that: include: A housing having an installation cavity, a first air outlet, a second air outlet, and a return air outlet connected to the installation cavity, wherein along the height direction of the housing, the first air outlet is located above the second air outlet, and the second air outlet is located above the return air outlet; a flow guide member installed in the installation cavity, capable of allowing external air to enter the installation cavity through the return air port, and allowing the air in the installation cavity to flow out of the installation cavity through the first air outlet and / or the second air outlet; The air outlet area of the first air outlet is arc-shaped, and the first air outlet is provided with an air outlet grille.

2. The air duct module according to claim 1, characterized in that: At least a portion of the first air outlet is arc-shaped.

3. The air duct module according to claim 2, characterized in that: The arc of the first air outlet is 80 degrees to 100 degrees.

4. The air duct module according to claim 2, characterized in that: The housing has a first surface and a second surface arranged at an angle to each other, and the first air outlet is located on the first surface and the second surface respectively.

5. The air duct module according to any one of claims 1 to 4, characterized in that: The air duct module further includes a flow guide member disposed in the installation cavity, capable of distributing air volume to the first air outlet and the second air outlet.

6. The air duct module according to claim 5, characterized in that: The shell includes a front shell and a rear shell, the front shell and the rear shell are connected to form the installation cavity, the first air outlet, the second air outlet and the return air outlet are arranged on the front shell, and the rear shell is provided with an air inlet.

7. The air duct module according to claim 6, characterized in that: The flow guide is installed on the rear shell and is sealed with the front shell.

8. The air duct module according to claim 7, characterized in that: The flow guide is integrally formed with the rear shell.

9. The air duct module according to any one of claims 1 to 4, characterized in that: The shell has a mounting groove; the air duct module also includes a fixing member and a cover plate, the fixing member is arranged in the mounting groove and is used to fix the shell and the cabinet of the refrigeration equipment, and the cover plate covers the mounting groove.

10. A horizontal freezer, characterized in that: It comprises a cabinet and an air duct module according to any one of claims 1 to 9, wherein the air duct module is installed in the cabinet.

11. The horizontal freezer according to claim 10, characterized in that: The cabinet body has a accommodating cavity, the accommodating cavity has a bottom surface and a step surface higher than the bottom surface, and the return air outlet is located on the step surface.

12. The horizontal freezer according to claim 11, characterized in that: Along the height direction of the cabinet, the return air outlet is located at 1 / 4 to 1 / 2 of the cabinet.

13. The horizontal freezer according to claim 10, characterized in that: Along the height direction of the cabinet, the second air outlet is located at 3 / 5 to 4 / 5 of the cabinet.

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